#D90F00
Closest named color: Crimson (#DC143C). oklch(55.9% 0.225 29.9), rgb(217, 15, 0).
Aa
White text reads best on this color (5.22:1).
About this color
#D90F00 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.225 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.040 away. White text reads best on it, at 5.22:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.225) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.01:1 |
| White text | 5.22:1 |
Values
| HEX | #D90F00 |
| RGB | rgb(217, 15, 0) |
| HSL | hsl(4, 100%, 43%) |
| OKLCH | oklch(55.9% 0.225 29.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #D90F00 | 5.22:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #D90F00 | 4.01:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #D90F00 text on white | 5.22:1 | AA | Lc 73.4 | Content text, not long reading |
| #D90F00 text on black | 4.01:1 | AA large text | Lc -28.3 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DE
oklch(93.6% 0.03 30.6)
-
Step 200
200
#FCCCC3
oklch(88.5% 0.056 30.5)
-
Step 300
300
#FBA89A
oklch(80.9% 0.101 30)
-
Step 400
400
#F57462
oklch(70.8% 0.162 29.8)
-
Step 500
500
#EC4533
oklch(63.1% 0.206 30)
-
Step 600
600 (this color)
#D90F00
oklch(55.9% 0.225 29.9)
-
Step 700
700
#B60B00
oklch(49.1% 0.197 30)
-
Step 800
800
#970700
oklch(42.7% 0.172 29.9)
-
Step 900
900
#79160D
oklch(37.6% 0.135 29.9)
-
Step 950
950
#48100A
oklch(27.1% 0.086 29.8)
#D90F00 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #5E5100 | 0.244 |
| Deuteranopia (no green cones) | #8B7B00 | 0.217 |
| Tritanopia (no blue cones) | #F00013 | 0.047 |
| Achromatopsia (no color) | #6C6C6C | 0.227 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D90F00
#D90F00
oklch(55.9% 0.225 29.9)
- #008393
#008393
oklch(55.9% 0.097 209.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #D90F00, closest first.
No curated palette has a color within ΔE 0.04 of #D90F00.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.040
- Cherry #CF0234 ΔE 0.042
- Tomato Red #EC2D01 ΔE 0.050
- Scarlet #BE0119 ΔE 0.060
- Red Pantone #EF233C ΔE 0.061
- Imperial Red #E63946 ΔE 0.063
- Lipstick Red #C0022F ΔE 0.063
- Lipstick #D5174E ΔE 0.063
Use #D90F00 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.